Spanish police arrested a suspect in the town of Miranda de Ebro in northern Spain who they said was a 74-year-old Spanish retired man. BARCELONA—Spanish police said they arrested a 74-year-old man suspected of sending letter bombs to government leaders, the U.S. and Ukrainian embassies and other targets late last year. The man, described as a retiree and Spanish citizen, was arrested in the town of Miranda de Ebro in northern Spain. Investigators presume he made and sent the six explosive packages by himself, the police said, but they didn’t rule out the participation or influence of other people. The man was in police custody on Wednesday while officers searched his house, where they believe he made the explosives.

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